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<li class="navelem"><a class="el" href="dir_b574b0807182fd54d29cf48452072c45.html">session</a></li><li class="navelem"><a class="el" href="dir_df5b0ac3fc1820ebfc25c1160f1f4b3a.html">shm</a></li><li class="navelem"><a class="el" href="dir_d1a5353b5ceb9e8de9acee201f2ed2e4.html">arena_lend</a></li><li class="navelem"><a class="el" href="dir_d618e329fbb069400f9c6c11fc37efe1.html">jemalloc</a></li>  </ul>
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<a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/* Flow-IPC: SHM-jemalloc</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * Copyright (c) 2023 Akamai Technologies, Inc.; and other contributors.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> * Each commit is copyright by its respective author or author&#39;s employer.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * Licensed under the MIT License:</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> *</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> * of this software and associated documentation files (the &quot;Software&quot;), to deal</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> * in the Software without restriction, including without limitation the rights</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> * copies of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> *</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * The above copyright notice and this permission notice shall be included in</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * all copies or substantial portions of the Software.</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> *</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment"> * THE SOFTWARE. */</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment"></span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment">/// @file</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment"></span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="preprocessor">#include &quot;<a class="code" href="session_2shm_2arena__lend_2jemalloc_2jemalloc__fwd_8hpp.html">ipc/session/shm/arena_lend/jemalloc/jemalloc_fwd.hpp</a>&quot;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="preprocessor">#include &quot;<a class="code" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2server__session_8hpp.html">ipc/session/shm/arena_lend/jemalloc/server_session.hpp</a>&quot;</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="preprocessor">#include &quot;<a class="code" href="session__server__impl_8hpp.html">ipc/session/detail/session_server_impl.hpp</a>&quot;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="preprocessor">#include &quot;ipc/shm/arena_lend/owner_shm_pool_listener_for_repository.hpp&quot;</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="preprocessor">#include &quot;<a class="code" href="pool__arena_8hpp.html">ipc/shm/classic/pool_arena.hpp</a>&quot;</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="preprocessor">#include &lt;boost/move/make_unique.hpp&gt;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc.html">ipc::session::shm::arena_lend::jemalloc</a></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>{</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="comment">// Types.</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="comment"></span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="comment">/**</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="comment"> * This is to vanilla Session_server what shm::arena_lend::jemalloc::Server_session is to vanilla #Server_session:</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment"> * it is the session-server type that starts SHM-enabled sessions with SHM-jemalloc provider</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"> * (ipc::shm::arena_lend::jemalloc).  Its API is identical to that of Session_server, except that it emits</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment"> * #Server_session_obj that are shm::arena_lend::jemalloc::Server_session and not vanilla #Server_session.</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment"> *</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment"> * @internal</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment"> * ### Implementation ###</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment"> * See similar section of session::Session_server.  It explains why we sub-class Session_server_impl and even how</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment"> * how that&#39;s used for this SHM-jemalloc scenario.  To reiterate:</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment"> *</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment"> * We use 2 of 2 available customization points of `private` super-class Session_server_impl.  We:</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment"> *   - pass-up a `per_app_setup_func()` that, given the new session&#39;s desired Client_app, creates-if-needed the per-app</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment"> *     SHM-arena and keeps it open as well as available via `this-&gt;app_shm(Client_app::m_name)`; and</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment"> *   - parameterize Session_server_impl on shm::arena_lend::jemalloc::Server_session which, during log-in, creates</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment"> *     the per-session SHM-arena and keeps it open; saves `this-&gt;app_shm(Client_app::m_name)`;</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment"> *     and partners with Client_session_impl to set up the lend/borrowing capability between us.</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment"> *</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment"> * shm::arena_lend::jemalloc::Server_session doc header delves deeply into the entire impl strategy for setting up</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment"> * these arenas.  If you read/grok that, then the present class&#39;s impl should be straightforward to follow.</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="comment"> * @endinternal</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="comment"> *</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment"> * @tparam S_MQ_TYPE_OR_NONE</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="comment"> *         See vanilla #Session_server.</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment"> * @tparam S_TRANSMIT_NATIVE_HANDLES</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment"> *         See vanilla #Session_server.</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="comment"> * @tparam Mdt_payload</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment"> *         See vanilla #Session_server.</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> */</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="keyword">template</span>&lt;session::schema::MqType S_MQ_TYPE_OR_NONE, <span class="keywordtype">bool</span> S_TRANSMIT_NATIVE_HANDLES, <span class="keyword">typename</span> Mdt_payload&gt;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html">   70</a></span><span class="keyword">class </span><a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html">Session_server</a> :</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>  <span class="keyword">private</span> <a class="code hl_class" href="classipc_1_1session_1_1Session__server__impl.html">Session_server_impl</a> <span class="comment">// Attn!  Emit `shm::arena_lend::jemalloc::Server_session`s (impl customization point).</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>            &lt;Session_server&lt;S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload&gt;,</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>             Server_session&lt;S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload&gt;&gt;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>{</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>  <span class="comment">// Types.</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment"></span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment">  /// Short-hand for our base/core impl.</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#af2d0f0b214054c9df58b9c44be38de14">   79</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_class" href="classipc_1_1session_1_1Session__server__impl.html">Impl</a> = <a class="code hl_class" href="classipc_1_1session_1_1Session__server__impl.html">Session_server_impl</a></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>                 &lt;<a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html">Session_server&lt;S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload&gt;</a>,</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>                  <a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session.html">Server_session&lt;S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload&gt;</a>&gt;;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>  <span class="comment">// Types.</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment"></span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment">  /// Short-hand for the concrete `Server_session`-like type emitted by async_accept().</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ad4d812cdb1a017fb603c16b3a386d433">   87</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session.html">Server_session_obj</a></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>    = <a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session.html">shm::arena_lend::jemalloc::Server_session&lt;S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload&gt;</a>;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"></span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment">  /// Short-hand for Session_mv::Mdt_reader_ptr.</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa846158c320f2870c77043b6270bb503">   91</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa846158c320f2870c77043b6270bb503">Mdt_reader_ptr</a> = <span class="keyword">typename</span> <a class="code hl_typedef" href="classipc_1_1session_1_1Session__server__impl.html#a86de1d5b7cae35d89827c3235e2b8d89">Impl::Mdt_reader_ptr</a>;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment"></span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment">  /// Metadata builder type passed to `mdt_load_func()` in advanced async_accept() overload.</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ae0a96fec25d9deea4000ddf72046f379">   94</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ae0a96fec25d9deea4000ddf72046f379">Mdt_builder</a> = <span class="keyword">typename</span> <a class="code hl_typedef" href="classipc_1_1session_1_1Session__mv.html#af10f452e602e4ea7389c6a77dd9a0f88">Server_session_obj::Mdt_builder</a>;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment"></span> </div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment">  /// Short-hand for Session_mv::Channels.</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a95e9d47a5bd9c32b3d3970ed3af0db01">   97</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a95e9d47a5bd9c32b3d3970ed3af0db01">Channels</a> = <span class="keyword">typename</span> <a class="code hl_typedef" href="classipc_1_1session_1_1Session__server__impl.html#a9ad5c6cbb1c9378d42ec5cd909389dc2">Impl::Channels</a>;</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"></span> </div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment">  /// Short-hand for shm::arena_lend::jemalloc::Session_mv::Arena.  See app_shm() in particular.</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a1e47c282616158733240d3b7bd808036">  100</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a1e47c282616158733240d3b7bd808036">Arena</a> = <span class="keyword">typename</span> <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv.html#ae30ae4b65cd4178fa26eed660688829f">Server_session_obj::Base::Arena</a>;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"></span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment">  /// Short-hand for shm::arena_lend::jemalloc::Session_mv::Structured_msg_builder_config.</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4d22e6f00d6b8b92fe99198837bce3b9">  103</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4d22e6f00d6b8b92fe99198837bce3b9">Structured_msg_builder_config</a> = <span class="keyword">typename</span> <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv.html#aaf1b1ad45b96d49c4c86e234a656f01b">Server_session_obj::Base::Structured_msg_builder_config</a>;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"></span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment">  /// Short-hand for shm::arena_lend::jemalloc::Session_mv::Structured_msg_reader_config.</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a0b167219307d2016e46490b82138c553">  106</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a0b167219307d2016e46490b82138c553">Structured_msg_reader_config</a> = <span class="keyword">typename</span> <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv.html#a50304d6dba4a332952aee67dc37598d0">Server_session_obj::Base::Structured_msg_reader_config</a>;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span> </div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>  <span class="comment">// Constructors/destructor.</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"></span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment">   * Constructor: identical to session::Session_server ctor.  See its doc header.</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment">   *</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment">   * @param logger_ptr</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment">   * @param srv_app_ref</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment">   * @param cli_app_master_set_ref</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment">   * @param err_code</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment">   */</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a5cfd3651a06380b877738c6b5fc353a9">Session_server</a>(flow::log::Logger* logger_ptr, <span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Server__app.html">Server_app</a>&amp; srv_app_ref,</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>                          <span class="keyword">const</span> <a class="code hl_typedef" href="structipc_1_1session_1_1Client__app.html#add718cbf6aa1d2abb26fbadcc974a7bd">Client_app::Master_set</a>&amp; cli_app_master_set_ref,</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>                          <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code = 0);</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span> </div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>  <span class="comment">// Methods.</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"></span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment">   * Contract identical to simpler session::Session_server::async_accept() overload; but internally ensures that</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment">   * the appropriate SHM-jemalloc arenas are available for use in the emitted #Server_session_obj.  See doc header for</span></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment">   * session::Session_server::async_accept() simple overload.  However additional `Error_code`s may be emitted on error.</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment">   *</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment">   * @tparam Task_err</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment">   *         See above.</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment">   * @param target_session</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment">   *        See above.  Reminder (though this is enforced at compile-time):</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment">   *        the type of `*target_session` for Session_server::async_accept() is #Server_session;</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment">   *        whereas here it is shm::arena_lend::jemalloc::Server_session.</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment">   * @param on_done_func</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment">   */</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Task_err&gt;</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>  <span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4b451906ee2b46d230df5f252bbb64ed">async_accept</a>(<a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session.html">Server_session_obj</a>* target_session, Task_err&amp;&amp; on_done_func);</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"></span> </div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment">   * Contract identical to advanced Session_server::async_accept() overload; but internally ensures that the appropriate</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment">   * SHM-jemalloc arenas are available for use in the emitted #Server_session_obj.  See doc header for</span></div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment">   * Session_server::async_accept() advanced overload.  However additional `Error_code`s may be emitted on error.</span></div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment">   *</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment">   * @tparam Task_err</span></div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment">   *         See above.</span></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment">   * @tparam N_init_channels_by_srv_req_func</span></div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment">   *         See above.</span></div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment">   * @tparam Mdt_load_func</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment">   *         See above.</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment">   * @param target_session</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment">   *        See other async_accept() overload.</span></div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment">   * @param init_channels_by_srv_req</span></div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment">   * @param mdt_from_cli_or_null</span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment">   * @param init_channels_by_cli_req</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment">   * @param n_init_channels_by_srv_req_func</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="comment">   * @param mdt_load_func</span></div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment">   * @param on_done_func</span></div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span><span class="comment">   */</span></div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Task_err,</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>           <span class="keyword">typename</span> N_init_channels_by_srv_req_func, <span class="keyword">typename</span> Mdt_load_func&gt;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>  <span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4b451906ee2b46d230df5f252bbb64ed">async_accept</a>(<a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session.html">Server_session_obj</a>* target_session,</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>                    <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a95e9d47a5bd9c32b3d3970ed3af0db01">Channels</a>* init_channels_by_srv_req,</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>                    <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa846158c320f2870c77043b6270bb503">Mdt_reader_ptr</a>* mdt_from_cli_or_null,</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>                    <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a95e9d47a5bd9c32b3d3970ed3af0db01">Channels</a>* init_channels_by_cli_req,</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>                    N_init_channels_by_srv_req_func&amp;&amp; n_init_channels_by_srv_req_func,</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>                    Mdt_load_func&amp;&amp; mdt_load_func,</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>                    Task_err&amp;&amp; on_done_func);</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="comment"></span> </div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment">   * Returns pointer to the per-`app` SHM-arena, whose lifetime extends until `*this` is destroyed;</span></div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment">   * or null if the given Client_app has not yet opened at least 1 shm::arena_lend::jemalloc::Server_session via</span></div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment">   * async_accept().  Alternatively you may use shm::arena_lend::jemalloc::Session_mv::app_shm() off any session object</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment">   * filled-out by `*this` async_accept(), as long as its Server_session_mv::client_app() equals</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment">   * `app` (by App::m_name equality).</span></div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment">   *</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment">   * If non-null is returned, then the same pointer value shall be returned for all subsequent calls</span></div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment">   * with the same (by App::m_name equality) `app`.  The non-null pointers returned for any 2 calls, where `app`</span></div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment">   * is different (by App::m_name equality) among them, shall always differ.</span></div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment">   *</span></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment">   * See shm::arena_lend::jemalloc::Session_mv::Arena doc header for useful instructions on working with #Arena,</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment">   * `lend_object()`, and `borrow_object()`.</span></div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment">   *</span></div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment">   * ### Perf ###</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment">   * Given the choice between Server_session_mv::app_shm() and the present method, the latter is somewhat</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment">   * slower; internally it involves a mutex-protected map lookup, while the former simply returns a cached</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment">   * pointer as of this writing.</span></div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment">   *</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment">   * Generally it is also quite fast for the user to save any non-null value returned by either `app_shm()`;</span></div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment">   * the pointer returned shall always be the same after all.</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment">   *</span></div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment">   * @internal</span></div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment">   * ### Thread safety ###</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment">   * For internal use, namely by shm::arena_lend::jemalloc::Server_session_impl::async_accept_log_in() at least,</span></div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment">   * it is guaranteed the app_shm() may be called on the same `*this` concurrently to itself</span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment">   * and init_app_shm_as_needed().  Formally speaking this isn&#39;t publicly documented, as I (ygoldfel) didn&#39;t want</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment">   * to get users into any bad habit, but internally it does have this property -- as it is required.</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment">   * @endinternal</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment">   *</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment">   * @param app</span></div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment">   *        Client_app whose segregated SHM-arena to return, if a session for a client of the app has been</span></div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment">   *        opened prior to this call.</span></div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment">   * @return Pointer to `*this`-held per-`app` SHM-arena, if it has been created; null otherwise.</span></div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment">   *         See above.</span></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment">   */</span></div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>  <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a1e47c282616158733240d3b7bd808036">Arena</a>* <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a8d11292ef977d04acb9260036100c605">app_shm</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app);</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment"></span> </div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment">   * Identical to app_shm() but returns that via a `shared_ptr`-handle as required for work directly within</span></div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span><span class="comment">   * ipc::shm::arena_lend::jemalloc APIs.  Note this is a quirk of that particular API and, in particular, has</span></div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span><span class="comment">   * no equivalent in ipc::session::shm::classic `Session` and `Session_server` counterparts.</span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span><span class="comment">   * It should not be necessary to use except when going beyond ipc::session for your SHM-arena needs.</span></div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="comment">   *</span></div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment">   * @param app</span></div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span><span class="comment">   */</span></div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>  std::shared_ptr&lt;Arena&gt; <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa56818050f1bd25b26fc51690a6afbf8">app_shm_ptr</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app);</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="comment"></span> </div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="comment">   * Returns builder config suitable for capnp-serializing out-messages in SHM arena app_shm() for</span></div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="comment">   * the same `Client_app app`.  Alternatively you may use</span></div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span><span class="comment">   * shm::arena_lend::jemalloc::Session_mv::app_shm_builder_config()</span></div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span><span class="comment">   * off any session object filled-out by `*this` async_accept(), as long as its Server_session_mv::client_app() equals</span></div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="comment">   * `app` (by App::m_name equality).</span></div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span><span class="comment">   *</span></div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span><span class="comment">   * Unlike app_shm() this method does not allow the case where `app_shm(app)` would have returned null.</span></div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span><span class="comment">   * In that case the present method yields undefined behavior (assertion may trip).</span></div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment">   *</span></div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment">   * ### Perf ###</span></div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">   * Given the choice between Server_session_mv::app_shm_builder_config() and the present method, the latter is somewhat</span></div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment">   * slower (reason: same as listed in app_shm() doc header).</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment">   *</span></div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment">   * Generally it is also quite fast for the user to save any value returned by either `app_shm_builder_config()`,</span></div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="comment">   * as an equal-by-value `Config` object shall be returned for the same (by App::m_name equality) `app`.</span></div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment">   *</span></div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment">   * @param app</span></div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment">   *        See app_shm().</span></div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment">   */</span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span>  <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4d22e6f00d6b8b92fe99198837bce3b9">Structured_msg_builder_config</a> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa548c3379d4b8a8f0b9d618b0c1da7ba">app_shm_builder_config</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app);</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="comment"></span> </div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment">   * In short, what app_shm_builder_config() is to shm::arena_lend::jemalloc::Session_mv::app_shm_builder_config(),</span></div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment">   * this is to shm::arena_lend::jemalloc::app_shm_lender_session().  Notes in app_shm_builder_config() doc header apply</span></div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment">   * here.</span></div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment">   *</span></div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment">   * @param app</span></div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment">   *        See app_shm().</span></div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment">   */</span></div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a1039d8bd2d4461085f3eeb5d24e40799">  263</a></span>  <span class="keyword">typename</span> Structured_msg_builder_config::Builder::Session <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a1039d8bd2d4461085f3eeb5d24e40799">app_shm_lender_session</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app);</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="comment"></span> </div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="comment">   * Returns reader config counterpart to app_shm_builder_config() for a given `Client_app app`.</span></div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment">   *</span></div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span><span class="comment">   * @param app</span></div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment">   *        See app_shm().</span></div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span><span class="comment">   */</span></div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>  <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a0b167219307d2016e46490b82138c553">Structured_msg_reader_config</a> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a96cce95ab7dccc577815b907c94b8f7e">app_shm_reader_config</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app);</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span><span class="comment"></span> </div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span><span class="comment">   * Returns the arena-pool listener maintained throughout `*this` Session_server&#39;s life.</span></div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span><span class="comment">   * One must register it with any arena `A`, if one wants to do `A.construct&lt;T&gt;()`, where `T` is</span></div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="comment">   * an allocator-compliant data structure type with shm::stl::Stateless_allocator.  (Session_server does so</span></div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span><span class="comment">   * automatically for any #Arena it maintains out of the box, namely Session_mv::session_shm() and</span></div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="comment">   * the ones returned by app_shm().)  This may be useful if creating your own custom-purpose #Arena; instead</span></div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="comment">   * you can create your own `Owner_shm_pool_listener_for_repository`, but it is generally encouraged to not</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="comment">   * do so unnecessarily.</span></div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span><span class="comment">   *</span></div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span><span class="comment">   */</span></div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span>  ipc::shm::arena_lend::Owner_shm_pool_listener_for_repository* <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ac2c6ecf04a16b5aba00bdede17aa52e1">shm_arena_pool_listener</a>();</div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="comment"></span> </div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment">   * Prints string representation to the given `ostream`.</span></div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment">   *</span></div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment">   * @param os</span></div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment">   *        Stream to which to write.</span></div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment">   */</span></div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span>  <span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a522c28128981264487a7e35dd9ea3ef8">to_ostream</a>(std::ostream* os) <span class="keyword">const</span>;</div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span> </div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span>  <span class="comment">// The LOG_*() macros don&#39;t see Log_context::get_log*() from base otherwise....</span></div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>  <span class="keyword">using </span>flow::log::Log_context::get_logger;</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span>  <span class="keyword">using </span>flow::log::Log_context::get_log_component;</div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span> </div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span>  <span class="comment">// Types.</span></div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment"></span> </div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment">  /// Short-hand for #m_app_shm_mutex type.</span></div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a6e1d79535dbedc076f11077735e866db">  303</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a6e1d79535dbedc076f11077735e866db">Mutex</a> = flow::util::Mutex_non_recursive;</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment"></span> </div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment">  /// Short-hand for #Mutex lock.</span></div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a435bf78fa2f7ef5da954cb0cc0da69cb">  306</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a435bf78fa2f7ef5da954cb0cc0da69cb">Lock_guard</a> = flow::util::Lock_guard&lt;Mutex&gt;;</div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span> </div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>  <span class="comment">// Methods.</span></div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span><span class="comment"></span> </div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment">   * Analogous to classic::Session_server::init_app_shm_as_needed().  See that doc header.</span></div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">   *</span></div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">   * @param app</span></div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment">   */</span></div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span>  <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ae5b53f9881efc8eccb5f93dc7d820c70">init_app_shm_as_needed</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app);</div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment"></span> </div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment">  /// Invoked on #m_async_cleanup_worker, performs a round of the SHM-pool cleanup algorithm and schedules same.</span></div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment"></span>  <span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aafb28832358d6f75f363b932c291884f">cleanup</a>();</div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span> </div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span>  <span class="comment">// Data.</span></div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment"></span> </div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment">  /// Identical to Session_server::m_srv_app_ref.  Used in init_app_shm_as_needed() name calc.</span></div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a39dc0e5a46a40b15c50d51b4929bac3c">  325</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Server__app.html">Server_app</a>&amp; <a class="code hl_variable" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a39dc0e5a46a40b15c50d51b4929bac3c">m_srv_app_ref</a>;</div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment"></span> </div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment">  /// Identical Session_base::m_srv_namespace.  Used in init_app_shm_as_needed() name calc.</span></div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aaeb9c251968732f0f44dcde64abdb8bb">  328</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a> <a class="code hl_variable" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aaeb9c251968732f0f44dcde64abdb8bb">m_srv_namespace</a>;</div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment"></span> </div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment">  /// Protects #m_app_shm_by_name.</span></div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#acff88daea55dc583980576e06659324b">  331</a></span><span class="comment"></span>  <span class="keyword">mutable</span> <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a6e1d79535dbedc076f11077735e866db">Mutex</a> <a class="code hl_variable" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#acff88daea55dc583980576e06659324b">m_app_shm_mutex</a>;</div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment"></span> </div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment">   * This guy needs to be around, with each arena (in our case, out of the box, `session_shm()`s and `app_shm()`s)</span></div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="comment">   * registered against it, for shm::stl::Arena_allocator (and thus STL/allocator-compliant data structures, including</span></div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="comment">   * containers like our own transport::struc::shm::Capnp_message_builder::Segments_in_shm) to work properly with that</span></div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span><span class="comment">   * arena.</span></div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span><span class="comment">   *</span></div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span><span class="comment">   * Details:</span></div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="comment">   *   - It is recommended there are not tons of these lying around, but in a production application there</span></div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="comment">   *     should be one session::Session_server around at a time at most.  So keeping this here makes sense.</span></div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment">   *     Note we didn&#39;t, say, put one in each Server_session_impl.</span></div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment">   *   - It is *not* a problem if there is more than one per process; so if there are more sessions around</span></div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment">   *     in the process, it won&#39;t cause any problem.  It&#39;s not a singleton situation.</span></div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment">   *</span></div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment">   * There is also one in each Client_session_impl.</span></div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">   */</span></div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aea3beac7c650fb100748a1f768e14d5e">  348</a></span>  ipc::shm::arena_lend::Owner_shm_pool_listener_for_repository <a class="code hl_variable" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aea3beac7c650fb100748a1f768e14d5e">m_shm_arena_pool_listener</a>;</div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment"></span> </div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="comment">   * The per-app-scope SHM arenas by App::m_name.  If it&#39;s not in the map, it has not been needed yet.</span></div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span><span class="comment">   * If it is but is null, it has but error caused it to not be set-up successfully.</span></div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span><span class="comment">   */</span></div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a288737a9a8301c166aa83a5f05315c2a">  354</a></span>  boost::unordered_map&lt;std::string, std::shared_ptr&lt;Arena&gt;&gt; <a class="code hl_variable" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a288737a9a8301c166aa83a5f05315c2a">m_app_shm_by_name</a>;</div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment"></span> </div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span><span class="comment">  /// Thread used for low-priority periodic low-priority cleanup work.  See cleanup().</span></div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a37d900117341220d3f5b86b706dca47c">  357</a></span><span class="comment"></span>  flow::async::Single_thread_task_loop <a class="code hl_variable" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a37d900117341220d3f5b86b706dca47c">m_async_cleanup_worker</a>;</div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span>}; <span class="comment">// class Session_server</span></div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span> </div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span><span class="comment">// Free functions: in *_fwd.hpp.</span></div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span> </div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span><span class="comment">// Template implementations.</span></div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span><span class="comment"></span> </div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span><span class="comment">/// Internally used macro; public API users should disregard (same deal as in struc/channel.hpp).</span></div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"><a class="line" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">  365</a></span><span class="comment"></span><span class="preprocessor">#define TEMPLATE_JEM_SESSION_SRV \</span></div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="preprocessor">  template&lt;session::schema::MqType S_MQ_TYPE_OR_NONE, bool S_TRANSMIT_NATIVE_HANDLES, typename Mdt_payload&gt;</span><span class="comment"></span></div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span><span class="comment">/// Internally used macro; public API users should disregard (same deal as in struc/channel.hpp).</span></div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"><a class="line" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#a8dae23ecd3142855a8275d6470410ea3">  368</a></span><span class="comment"></span><span class="preprocessor">#define CLASS_JEM_SESSION_SRV \</span></div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span><span class="preprocessor">  Session_server&lt;S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload&gt;</span></div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span> </div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a5cfd3651a06380b877738c6b5fc353a9">  372</a></span>CLASS_JEM_SESSION_SRV::Session_server(flow::log::Logger* logger_ptr, <span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Server__app.html">Server_app</a>&amp; srv_app_ref_arg,</div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span>                                      <span class="keyword">const</span> <a class="code hl_typedef" href="structipc_1_1session_1_1Client__app.html#add718cbf6aa1d2abb26fbadcc974a7bd">Client_app::Master_set</a>&amp; cli_app_master_set_ref,</div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span>                                      <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code) :</div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span>  <a class="code hl_class" href="classipc_1_1session_1_1Session__server__impl.html">Impl</a>(logger_ptr, this, srv_app_ref_arg, cli_app_master_set_ref, err_code,</div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span>       [this](const <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app) -&gt; <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a></div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span>         { <span class="keywordflow">return</span> <a class="code hl_function" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ae5b53f9881efc8eccb5f93dc7d820c70">init_app_shm_as_needed</a>(app); }), <span class="comment">// Impl customization point: create *(app_shm()) for the `app`.</span></div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span>  m_srv_app_ref(Impl::m_srv_app_ref),</div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span>  m_srv_namespace</div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span>    (<a class="code hl_class" href="classipc_1_1session_1_1Server__session__dtl.html">Server_session_dtl&lt;Server_session_obj&gt;</a>(<span class="keyword">nullptr</span>, m_srv_app_ref, <a class="code hl_class" href="classipc_1_1transport_1_1sync__io_1_1Native__socket__stream.html">transport::sync_io::Native_socket_stream</a>())</div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span>       .base().srv_namespace()),</div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span>  m_shm_arena_pool_listener(get_logger()),</div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span>  m_async_cleanup_worker(get_logger(),</div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span>                         <span class="comment">/* (Linux) OS thread name will truncate the this-addr snippet to 15-5=10 chars here;</span></div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span><span class="comment">                          * which should actually just fit.  Nothing else seems particularly useful;</span></div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span><span class="comment">                          * like in non-exotic setups our srv-name is pretty much known. */</span></div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span>                         flow::util::ostream_op_string(<span class="stringliteral">&quot;SSvJ-&quot;</span>, <span class="keyword">this</span>))</div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span>{</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span>  <span class="keyword">using </span>flow::async::reset_this_thread_pinning;</div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span> </div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span>  <span class="comment">// Before we continue: handle that Impl ctor may have thrown (then we don&#39;t get here) or emitted error via *err_code.</span></div>
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span>  <span class="keywordflow">if</span> (err_code &amp;&amp; *err_code)</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span>  {</div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span>    <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span>  }</div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span>  <span class="comment">// else Impl ctor executed fine.</span></div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span> </div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span>  m_async_cleanup_worker.start(reset_this_thread_pinning);</div>
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span>  <span class="comment">// Don&#39;t inherit any strange core-affinity!  ^-- Worker must float free.</span></div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span> </div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span>  m_async_cleanup_worker.post([<span class="keyword">this</span>]() { cleanup(); });</div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span>} <span class="comment">// Session_server::Session_server()</span></div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span> </div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ae5b53f9881efc8eccb5f93dc7d820c70">  405</a></span><a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> CLASS_JEM_SESSION_SRV::init_app_shm_as_needed(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app)</div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span>{</div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span>  <span class="keyword">using </span>ipc::shm::arena_lend::jemalloc::Memory_manager;</div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span>  <span class="keyword">using </span>boost::movelib::make_unique;</div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span>  <span class="keyword">using </span>std::make_shared;</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span>  <span class="keyword">using </span>std::to_string;</div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span>  <span class="keyword">using </span>std::string;</div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span> </div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span>  <span class="comment">/* We are in some unspecified thread; actually *a* Session_server_impl thread Ws (a Server_session_impl thread W).</span></div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span><span class="comment">   * Gotta lock at least to protect from concurrent calls to ourselves on behalf of other async_accept()s. */</span></div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span> </div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span>  <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a435bf78fa2f7ef5da954cb0cc0da69cb">Lock_guard</a> app_shm_lock(m_app_shm_mutex);</div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span> </div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span>  <span class="keyword">auto</span>&amp; app_shm = m_app_shm_by_name[app.<a class="code hl_variable" href="structipc_1_1session_1_1App.html#a8e67b57829fe43a122a23c699b5de8fd">m_name</a>]; <span class="comment">// Find; insert if needed.</span></div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span>  <span class="keywordflow">if</span> (app_shm)</div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span>  {</div>
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span>    <span class="comment">// Cool; already exists, as app.m_name seen already (and successfully set-up, as seen below) by us.</span></div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>();</div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span>  }</div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span> </div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span>  <span class="comment">// Below should INFO-log already; let&#39;s not litter logs explaining why this is being created; context = sufficient.</span></div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span> </div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span>  <span class="comment">/* Arena needs a pool namer it will invoke each time the memory manager decides it wants a new mmap()ped vaddr</span></div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span><span class="comment">   * space (in the SHM context, &lt;-&gt; SHM-pool).  We use our standard semantics for per-session items.  To save some</span></div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span><span class="comment">   * compute cycles pre-compute the prefix and remember it via capture.</span></div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span><span class="comment">   *</span></div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span><span class="comment">   * This is the same as Session_mv::init_shm() but simpler due to being a server-side thing (as opposed to possibly</span></div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span><span class="comment">   * client-side) and thus not needing to add any client-PID for cleanup purposes (server-PID is already</span></div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span><span class="comment">   * the srv_namespace baked into every Shared_name).  Also it&#39;s per-app, not per-session, hence cli_namespace is</span></div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span><span class="comment">   * not needed. */</span></div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span>  <span class="keyword">auto</span> pool_naming_func = [shm_pool_name_prefix</div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span>                             = <a class="code hl_function" href="namespaceipc_1_1session.html#a365d2d63f77b738e67e206af6b702634">build_conventional_shared_name</a>(<a class="code hl_variable" href="classipc_1_1util_1_1Shared__name.html#a4c294e23753eb706b4c297d99d24cd48">Shared_name::S_RESOURCE_TYPE_ID_SHM</a>,</div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span>                                                              <a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#a48f20b7b54490aa10dc64081d34c55b2">Shared_name::ct</a>(m_srv_app_ref.m_name), m_srv_namespace,</div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span>                                                              <a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#a48f20b7b54490aa10dc64081d34c55b2">Shared_name::ct</a>(app.<a class="code hl_variable" href="structipc_1_1session_1_1App.html#a8e67b57829fe43a122a23c699b5de8fd">m_name</a>))</div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span>                               / <a class="code hl_variable" href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc.html#a8902859cb5006277933c12eeb9c6ef5d">SHM_SUBTYPE_PREFIX</a> / <span class="stringliteral">&quot;&quot;</span>] <span class="comment">// Might as well remember the last separator too.</span></div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span>                            (<span class="keyword">auto</span> pool_id) -&gt; <span class="keywordtype">string</span></div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span>  {</div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span>    <span class="comment">// @todo Arena expects string at the moment; might/should change to Shared_name at some point.</span></div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span> </div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span>    <span class="keywordtype">string</span> shm_pool_name = shm_pool_name_prefix.str();</div>
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span> </div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span>    <span class="comment">/* Per contract pool_id is unique entirely globally and is informally recommended to encode here; so we do.</span></div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span><span class="comment">     * We could instead keep our own ++ing pool-ID, since we guarantee non-conflicting names from other</span></div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span><span class="comment">     * apps/servers/etc. using our Shared_name-building conventions; but since they&#39;re giving us this</span></div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span><span class="comment">     * thing for free (as of this writing it is globally-unique -- even across apps, etc. -- for</span></div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="comment">     * SHM-jemalloc&#39;s own internal purposes), we might as well use it. */</span></div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span>    <span class="keywordflow">return</span> shm_pool_name += to_string(pool_id);</div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span>    <span class="comment">// @todo to_string() deals with locales which may be slow.  Consider std::to_chars().</span></div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span>  }; <span class="comment">// auto pool_naming_func =</span></div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span> </div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span>  app_shm</div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>    = Arena::create(get_logger(),</div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>                    <span class="comment">// See equally-relevant note/@todo in Session_mv::init_shm().</span></div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span>                    make_shared&lt;Memory_manager&gt;(get_logger()),</div>
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span>                    <span class="keyword">typename</span> Arena::Shm_object_name_generator(std::move(pool_naming_func)),</div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span>                    <a class="code hl_function" href="namespaceipc_1_1util.html#abda2ce5bcdbc26ca63d667b87818439c">util::shared_resource_permissions</a>(m_srv_app_ref.m_permissions_level_for_client_apps));</div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span>  <span class="keywordflow">if</span> (!app_shm)</div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span>  {</div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span>    <span class="comment">/* app_shm, which is in the map directly, is null.  Just leave null in the map; meh.</span></div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span><span class="comment">     * .erase()ing it from there is just pedantic at best.  (The [] lookup above will do the right thing next time.) */</span></div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span> </div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span>    FLOW_LOG_WARNING(<span class="stringliteral">&quot;Session_server [&quot;</span> &lt;&lt; * <span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Failed to create session-scope Arena; &quot;</span></div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span>                     <span class="stringliteral">&quot;details may be found above.  Session will not open.&quot;</span>);</div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span> </div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span>    <span class="comment">// See @todo on this Code; in short if create() emitted an Error_code, we&#39;d just emit that instead here.</span></div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span>    <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1error.html#a9723fe7e789d5d2d670c42d32238f223a9fcf37ffabb8e0b552276e4bcbe5b0e0">error::Code::S_SHM_ARENA_CREATION_FAILED</a>;</div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span>  }</div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span>  <span class="comment">// else: Cool!  One last thing (which cannot really fail).</span></div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span> </div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span>  <span class="comment">/* Need this for arena-&gt;construct&lt;T&gt;(), where T is allocator-compliant thing such as STL containers,</span></div>
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span><span class="comment">   * to work. */</span></div>
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span><span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> ok =</div>
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span>  app_shm-&gt;add_shm_pool_listener(&amp;m_shm_arena_pool_listener);</div>
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span>  assert(ok &amp;&amp; <span class="stringliteral">&quot;Maintenance bug?  It should only fail if already registered.&quot;</span>);</div>
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span> </div>
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span>  <span class="keywordflow">return</span> <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>();</div>
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span>  <span class="comment">// Lock_guard app_shm_lock(m_app_shm_mutex): unlocks here.</span></div>
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span>} <span class="comment">// Session_server::init_app_shm_as_needed()</span></div>
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span> </div>
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a8d11292ef977d04acb9260036100c605">  488</a></span><span class="keyword">typename</span> CLASS_JEM_SESSION_SRV::Arena* CLASS_JEM_SESSION_SRV::app_shm(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app)</div>
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span>{</div>
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span>  <span class="keywordflow">return</span> app_shm_ptr(app).get();</div>
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span>}</div>
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span> </div>
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa56818050f1bd25b26fc51690a6afbf8">  494</a></span>std::shared_ptr&lt;typename CLASS_JEM_SESSION_SRV::Arena&gt; CLASS_JEM_SESSION_SRV::app_shm_ptr(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app)</div>
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span>{</div>
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span>  <span class="keyword">using </span>std::shared_ptr;</div>
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span> </div>
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span>  <span class="comment">// We are in some unspecified thread; we promised thread safety form any concurrency situation.</span></div>
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span> </div>
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span>  <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a435bf78fa2f7ef5da954cb0cc0da69cb">Lock_guard</a> app_shm_lock(m_app_shm_mutex);</div>
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span> </div>
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span>  <span class="comment">/* Subtlety: Due to an intentional quirk of init_app_shm_as_needed(), if it&#39;s in the map, the ptr may still be null:</span></div>
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span><span class="comment">   * init_app_shm_as_needed() failed for app.m_name but does not erase in that case and just leaves null. */</span></div>
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span>  <span class="keyword">const</span> <span class="keyword">auto</span> map_it = m_app_shm_by_name.find(app.<a class="code hl_variable" href="structipc_1_1session_1_1App.html#a8e67b57829fe43a122a23c699b5de8fd">m_name</a>);</div>
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span>  <span class="keywordflow">return</span> (map_it == m_app_shm_by_name.end()) ? shared_ptr&lt;Arena&gt;() : map_it-&gt;second;</div>
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span> </div>
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span>  <span class="comment">// Lock_guard app_shm_lock(m_app_shm_mutex): unlocks here.</span></div>
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span>}</div>
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span> </div>
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span><span class="keyword">typename</span> CLASS_JEM_SESSION_SRV::Structured_msg_builder_config</div>
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa548c3379d4b8a8f0b9d618b0c1da7ba">  512</a></span>  CLASS_JEM_SESSION_SRV::app_shm_builder_config(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app)</div>
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span>{</div>
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span>  <span class="keyword">const</span> <span class="keyword">auto</span> arena = app_shm(app);</div>
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span>  assert(arena &amp;&amp; <span class="stringliteral">&quot;By contract do not call this for not-yet-encountered Client_app.&quot;</span>);</div>
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span> </div>
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span>  <span class="keywordflow">return</span> <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4d22e6f00d6b8b92fe99198837bce3b9">Structured_msg_builder_config</a>(get_logger(), 0, 0, arena);</div>
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span>}</div>
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span> </div>
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span><span class="keyword">typename</span> CLASS_JEM_SESSION_SRV::Structured_msg_reader_config</div>
<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a96cce95ab7dccc577815b907c94b8f7e">  522</a></span>  CLASS_JEM_SESSION_SRV::app_shm_reader_config(<span class="keyword">const</span> <a class="code hl_struct" href="structipc_1_1session_1_1Client__app.html">Client_app</a>&amp; app)</div>
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span>{</div>
<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span>  <span class="keyword">const</span> <span class="keyword">auto</span> arena = app_shm(app);</div>
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span>  assert(arena &amp;&amp; <span class="stringliteral">&quot;By contract do not call this for not-yet-encountered Client_app.&quot;</span>);</div>
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span> </div>
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span>  <span class="keywordflow">return</span> <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a0b167219307d2016e46490b82138c553">Structured_msg_reader_config</a>(get_logger(), arena);</div>
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span>}</div>
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span> </div>
<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Task_err&gt;</div>
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4b451906ee2b46d230df5f252bbb64ed">  532</a></span><span class="keywordtype">void</span> CLASS_JEM_SESSION_SRV::async_accept(<a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session.html">Server_session_obj</a>* target_session, Task_err&amp;&amp; on_done_func)</div>
<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span>{</div>
<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span>  <span class="comment">// As advertised this overload always means:</span></div>
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span> </div>
<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span>  <span class="keyword">auto</span> ignored_func = [](<span class="keyword">auto</span>&amp;&amp;...) -&gt; <span class="keywordtype">size_t</span> { <span class="keywordflow">return</span> 0; };</div>
<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span>  <span class="keyword">auto</span> no_op_func = [](<span class="keyword">auto</span>&amp;&amp;...) {};</div>
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span> </div>
<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span>  async_accept(target_session, <span class="keyword">nullptr</span>, <span class="keyword">nullptr</span>, <span class="keyword">nullptr</span>, std::move(ignored_func), std::move(no_op_func),</div>
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span>               std::move(on_done_func));</div>
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span> </div>
<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span>  <span class="comment">/* @todo That&#39;s a copy-paste of Session_server::async_accept() counterpart.  Maybe the design can be amended</span></div>
<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span><span class="comment">   * for greater code reuse/maintainability?  This isn&#39;t *too* bad but.... */</span></div>
<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span>}</div>
<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span> </div>
<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Task_err,</div>
<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span>         <span class="keyword">typename</span> N_init_channels_by_srv_req_func, <span class="keyword">typename</span> Mdt_load_func&gt;</div>
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a76037239acb4b0082023dbe7e7dafb0b">  549</a></span><span class="keywordtype">void</span> CLASS_JEM_SESSION_SRV::async_accept(<a class="code hl_class" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session.html">Server_session_obj</a>* target_session,</div>
<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span>                                         <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a95e9d47a5bd9c32b3d3970ed3af0db01">Channels</a>* init_channels_by_srv_req,</div>
<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span>                                         <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa846158c320f2870c77043b6270bb503">Mdt_reader_ptr</a>* mdt_from_cli_or_null,</div>
<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span>                                         <a class="code hl_typedef" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a95e9d47a5bd9c32b3d3970ed3af0db01">Channels</a>* init_channels_by_cli_req,</div>
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span>                                         N_init_channels_by_srv_req_func&amp;&amp; n_init_channels_by_srv_req_func,</div>
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span>                                         Mdt_load_func&amp;&amp; mdt_load_func,</div>
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span>                                         Task_err&amp;&amp; on_done_func)</div>
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span>{</div>
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span>  Impl::async_accept(target_session, init_channels_by_srv_req, mdt_from_cli_or_null, init_channels_by_cli_req,</div>
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span>                     std::move(n_init_channels_by_srv_req_func), std::move(mdt_load_func), std::move(on_done_func));</div>
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span>}</div>
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span> </div>
<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span>ipc::shm::arena_lend::Owner_shm_pool_listener_for_repository*</div>
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ac2c6ecf04a16b5aba00bdede17aa52e1">  563</a></span>  CLASS_JEM_SESSION_SRV::shm_arena_pool_listener()</div>
<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span>{</div>
<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span>  <span class="keywordflow">return</span> &amp;m_shm_arena_pool_listener;</div>
<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span>}</div>
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span> </div>
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aafb28832358d6f75f363b932c291884f">  569</a></span><span class="keywordtype">void</span> CLASS_JEM_SESSION_SRV::cleanup()</div>
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span>{</div>
<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span>  <span class="comment">// `classic`?  Pool_arena?!  But this is jemalloc!?!?!  Worry not.  See remove_each_persistent_if() doc header.</span></div>
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span>  <span class="keyword">using </span><a class="code hl_class" href="classipc_1_1shm_1_1classic_1_1Pool__arena.html">ipc::shm::classic::Pool_arena</a>;</div>
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">util::String_view</a>;</div>
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#a0c44028a45451ebf21f6af8e806b2682">util::process_id_t</a>;</div>
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span>  <span class="keyword">using </span>boost::lexical_cast;</div>
<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span> </div>
<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span>  <span class="keyword">constexpr</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a> CLEANUP_PERIOD = seconds(30);</div>
<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span> </div>
<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Client session [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Periodic (or initial) cleanup starting.&quot;</span>);</div>
<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span> </div>
<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span>  <span class="comment">/* This is just like Client_session_impl::cleanup(), except for some small differences explained therein; but</span></div>
<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span><span class="comment">   * the main explanation is right here.  Read on.</span></div>
<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span><span class="comment">   *</span></div>
<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span><span class="comment">   * As with SHM-classic, cleanup of SHM-pools = 2 tasks; graceful cleanup, when objects are destroyed normally</span></div>
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span><span class="comment">   * on process exit() or earlier; and cleanup after a process dies or zombifies/later dies and thus the</span></div>
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span><span class="comment">   * regular destructor don&#39;t run.  Graceful cleanup for SHM-jemalloc is accomplished in each Arena&#39;s dtor</span></div>
<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span><span class="comment">   * and is, to us, a black box; the point is it takes care of it, so we need not do anything further.</span></div>
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span><span class="comment">   * (This is in contrast to SHM-classic which centers on classic::Pool_arena which is so minimalistic that it leaves</span></div>
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span><span class="comment">   * that task to the user of Pool_arena; in our case ipc::session::shm::classic code is that user and takes care of it.</span></div>
<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span><span class="comment">   * Point is, with SHM-jemalloc we need not.)  So that leaves ungraceful cleanup.  In point of fact, SHM-jemalloc</span></div>
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span><span class="comment">   * explicitly leaves the task of handling to that to its user (that&#39;s us).  So:</span></div>
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span><span class="comment">   *</span></div>
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span><span class="comment">   * In short, SHM-jemalloc at its core is symmetric in the sense that in an A-B session, where (say) A happens</span></div>
<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span><span class="comment">   * to be the Session_server side (SHM-jemalloc is not aware of that, but you and I are here), A maintains</span></div>
<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span><span class="comment">   * SHM-arena(s); and B maintains its own SHM-arena(s) (and the two cross-borrow objects from each other).</span></div>
<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span><span class="comment">   * If A aborts before destructor(s) completely run, then its arena(s) shall leak, and it&#39;s up to us to</span></div>
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span><span class="comment">   * remove_persistent() (really, SHM-unlink) them; and just the same for B.  While it is conceivable to try to</span></div>
<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span><span class="comment">   * impose the ipc::session ethos, where session-server is responsible for cleaning up everything -- including</span></div>
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span><span class="comment">   * stuff leaked by session-client(s) -- in this (rare) case that&#39;s not really natural.  It is difficult to make</span></div>
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span><span class="comment">   * any assumptions about what state some creator-process of a given SHM-pool may be in: SHM-jemalloc is a (complex)</span></div>
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span><span class="comment">   * black box.  Instead it is better to treat each side as similarly as possible, mirroring SHM-jemalloc&#39;s own</span></div>
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span><span class="comment">   * design (even though it left this task to us).</span></div>
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span><span class="comment">   *</span></div>
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span><span class="comment">   * Exact rationale aside, here&#39;s the deal.  If a given creator (owner) process of a SHM-jemalloc-managed pool</span></div>
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span><span class="comment">   * is not running, then it is correct and safe to remove_persistent() that pool: any existing handles to that</span></div>
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span><span class="comment">   * pool in other processes that may be alive will continue to be valid; and no more such processes shall arise.</span></div>
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span><span class="comment">   * Why?  Answer: because they only *can* arise through the Shm_session::lend_arena(Arena*) operation within the</span></div>
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span><span class="comment">   * creator (owner) of that Arena (which = pool collection = all SHM pools in arena)... but that process is dead.</span></div>
<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span><span class="comment">   * Nor does SHM-jemalloc support an owner re-opening (in the owner capacity) a previously created SHM-pool.</span></div>
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span><span class="comment">   * Therefore, logically, *if* we can determine that a given pool&#39;s owner is dead, *then* we can/should SHM-unlink</span></div>
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span><span class="comment">   * that pool.  We&#39;ll discuss how to do that next.  First, though, is it ever safe/correct to SHM-unlink a pool,</span></div>
<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span><span class="comment">   * while its creator (owner) is *not* dead?  The answer is no, except if that process is zombified (not &quot;really&quot;</span></div>
<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span><span class="comment">   * active).  We have no good way of determining that, as of this writing anyway.  There are some exceptions to</span></div>
<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span><span class="comment">   * this within ipc::session, and we are indeed in ipc::session right now.  Namely:</span></div>
<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span><span class="comment">   *   - If the owner of a pool was a Session_server (or Server_session borne of one), then in our paradigm there</span></div>
<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span><span class="comment">   *     must be at most one active Session_server; so if we are alive, then the owner of the pool must be inactive,</span></div>
<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span><span class="comment">   *     assuming things are working properly.  (SHM-classic cleanup relies on that in its cleanup algorithm.)</span></div>
<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span><span class="comment">   *   - However no such inference can be on Client_session side: Multiple `Client_session`s of one Client_app</span></div>
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span><span class="comment">   *     may live concurrently.</span></div>
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span><span class="comment">   * Since we can&#39;t really rely on that stuff, we elect to instead go with the simple aforementioned rule:</span></div>
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span><span class="comment">   *   - A SHM-pool was created by this app&#39;s SHM-jemalloc; and its owner (creator) process is now dead</span></div>
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span><span class="comment">   *     &lt;=&gt; remove_persistent() that SHM-pool.</span></div>
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span><span class="comment">   *</span></div>
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span><span class="comment">   * That leaves only the following challenges:</span></div>
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span><span class="comment">   *   - List all SHM-pools created by this app&#39;s SHM-jemalloc.  Solution: Pool_arena::for_each_persistent(), etc.,</span></div>
<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span><span class="comment">   *     which can scan /dev/shm (in Linux anyway) and find the pools with a certain name pattern; our Shared_name</span></div>
<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span><span class="comment">   *     ipc::session semantics (formally implemented in session_shared_name.hpp and described in Shared_name doc</span></div>
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span><span class="comment">   *     header) name things in such a way as to make this pretty simple.</span></div>
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span><span class="comment">   *   - Determine PID of creator of given pool.  Solution: Our PID is encoded into the Shared_name due to the</span></div>
<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span><span class="comment">   *     aforementioned ipc::session Shared_name semantics.</span></div>
<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span><span class="comment">   *   - Determne whether process with a certain PID is alive.  Solution: util::process_running().</span></div>
<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span><span class="comment">   *</span></div>
<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span><span class="comment">   * Let&#39;s do it. */</span></div>
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span> </div>
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span>  <span class="keyword">const</span> <span class="keyword">auto</span> n_removed</div>
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span>    = util::remove_each_persistent_if&lt;Pool_arena&gt;(get_logger(),</div>
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span>                                                  [&amp;](<span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; shm_pool_name)</div>
<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span>  {</div>
<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span>    <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a> resource_type;</div>
<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span>    <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a> srv_app_name;</div>
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span>    <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a> srv_namespace_aka_pid;</div>
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span>    <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a> the_rest;</div>
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span> </div>
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span>    <span class="keywordflow">if</span> (!(<a class="code hl_function" href="namespaceipc_1_1session.html#ac970e7d7b97c1a9737bd836a6a7f77ec">decompose_conventional_shared_name</a>(shm_pool_name,</div>
<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span>                                             <span class="comment">// We always identify resource type even though redundant in this case.</span></div>
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span>                                             &amp;resource_type,</div>
<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span>                                             &amp;srv_app_name, <span class="comment">// This must be us, not some other app.</span></div>
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span>                                             &amp;srv_namespace_aka_pid, <span class="comment">// This is what must be dead.</span></div>
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span>                                             <span class="keyword">nullptr</span>, <span class="comment">// cli_app_name: Needs to be there, but we don&#39;t care what it is.</span></div>
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span>                                             <span class="keyword">nullptr</span>, <span class="comment">// cli_namespace_or_sentinel: Ditto.</span></div>
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span>                                             &amp;the_rest)</div>
<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span>          &amp;&amp; (resource_type == <a class="code hl_variable" href="classipc_1_1util_1_1Shared__name.html#a4c294e23753eb706b4c297d99d24cd48">Shared_name::S_RESOURCE_TYPE_ID_SHM</a>)</div>
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span>          &amp;&amp; (srv_app_name == m_srv_app_ref.m_name)</div>
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span>          &amp;&amp; <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">String_view</a>(the_rest.<a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#ae89e1e061f87ffe0288514e254837595">str</a>()).starts_with((<a class="code hl_variable" href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc.html#a8902859cb5006277933c12eeb9c6ef5d">SHM_SUBTYPE_PREFIX</a> + <a class="code hl_variable" href="classipc_1_1util_1_1Shared__name.html#a5c0910497c5ec484d3e42dfb0ccad48d">Shared_name::S_SEPARATOR</a>).str())))</div>
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span>    {</div>
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span>      <span class="comment">/* Not our pool to possibly delete.  Misnamed; or not from a split with our Server_app;</span></div>
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span><span class="comment">       * or not from this SHM-provider. */</span></div>
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span>      return false;</div>
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno">  660</span>    }</div>
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span> </div>
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span>    <span class="comment">/* We could actually skip this next check -- then we&#39;d be deleting client-created stuff too.  It doesn&#39;t seem</span></div>
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span><span class="comment">     * like there&#39;s any practical downside.  Just... I (ygoldfel) have really convinced myself by that text</span></div>
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span><span class="comment">     * in the big comment above regarding arena-lending SHM-providers being symmetrical in how each side deals</span></div>
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span><span class="comment">     * with the resources they owned.  So going out of our way to clean server stuff by server, client stuff by</span></div>
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span><span class="comment">     * by client.  @todo Reconsider maybe.  It&#39;s also not of huge import, this question: If it gets cleaned, cool. */</span></div>
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span>    if (<a class="code hl_typedef" href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">String_view</a>(the_rest.<a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#ae89e1e061f87ffe0288514e254837595">str</a>()).find_first_of(<a class="code hl_variable" href="classipc_1_1util_1_1Shared__name.html#a5c0910497c5ec484d3e42dfb0ccad48d">Shared_name::S_SEPARATOR</a>,</div>
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span>                                                  <a class="code hl_variable" href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc.html#a8902859cb5006277933c12eeb9c6ef5d">SHM_SUBTYPE_PREFIX</a>.<a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#af34db2934e116f8a4fdd403fd04695af">size</a>() + 1) != String_view::npos)</div>
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span>    {</div>
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span>      return false; <span class="comment">// Not our pool to possibly delete.  From a split with our Server_app but created by client side.</span></div>
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span>    }</div>
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span> </div>
<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span>    <a class="code hl_typedef" href="namespaceipc_1_1util.html#a0c44028a45451ebf21f6af8e806b2682">process_id_t</a> pid = 0;</div>
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span>    <span class="keywordflow">try</span></div>
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno">  677</span>    {</div>
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno">  678</span>      pid = lexical_cast&lt;process_id_t&gt;(srv_namespace_aka_pid.str());</div>
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno">  679</span>    }</div>
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno">  680</span>    catch (...) {}</div>
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno">  681</span>    <span class="keywordflow">if</span> (pid == 0)</div>
<div class="line"><a id="l00682" name="l00682"></a><span class="lineno">  682</span>    {</div>
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno">  683</span>      FLOW_LOG_WARNING(<span class="stringliteral">&quot;Session server [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: During periodic cleanup found seemingly relevant &quot;</span></div>
<div class="line"><a id="l00684" name="l00684"></a><span class="lineno">  684</span>                       <span class="stringliteral">&quot;(based on prefix/form) SHM-pool named [&quot;</span> &lt;&lt; shm_pool_name &lt;&lt; <span class="stringliteral">&quot;]; but server-PID (a/k/a &quot;</span></div>
<div class="line"><a id="l00685" name="l00685"></a><span class="lineno">  685</span>                       <span class="stringliteral">&quot;server-namespace) term [&quot;</span> &lt;&lt; srv_namespace_aka_pid &lt;&lt; <span class="stringliteral">&quot;] is not a valid-looking PID.  &quot;</span></div>
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno">  686</span>                       <span class="stringliteral">&quot;Ignoring; but this warrants investigation.&quot;</span>);</div>
<div class="line"><a id="l00687" name="l00687"></a><span class="lineno">  687</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00688" name="l00688"></a><span class="lineno">  688</span>    }</div>
<div class="line"><a id="l00689" name="l00689"></a><span class="lineno">  689</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno">  690</span> </div>
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno">  691</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="namespaceipc_1_1util.html#a924cd56daf7eeaa0b07edb352367f9ec">util::process_running</a>(pid))</div>
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno">  692</span>    {</div>
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno">  693</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno">  694</span>    }</div>
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno">  695</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno">  696</span> </div>
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno">  697</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Session server [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: During periodic cleanup found SHM-pool &quot;</span></div>
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno">  698</span>                  <span class="stringliteral">&quot;named [&quot;</span> &lt;&lt; shm_pool_name &lt;&lt; <span class="stringliteral">&quot;]; appears to have been created by a process of this application &quot;</span></div>
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno">  699</span>                  <span class="stringliteral">&quot;that is no longer running, even as a zombie; perhaps it exited without graceful cleanup.  Will &quot;</span></div>
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno">  700</span>                  <span class="stringliteral">&quot;attempt to remove it.  Competing cleanup(s) may be occurring concurrently; that is fine.&quot;</span>);</div>
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno">  701</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno">  702</span>  }); <span class="comment">// remove_each_persistent_if()</span></div>
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno">  703</span>  <span class="keywordflow">if</span> (n_removed == 0)</div>
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno">  704</span>  {</div>
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno">  705</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Session server [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Cleanup finished: remove none.&quot;</span>);</div>
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno">  706</span>  }</div>
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno">  707</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno">  708</span>  {</div>
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno">  709</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Session server [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Cleanup finished: Removed [&quot;</span> &lt;&lt; n_removed &lt;&lt; <span class="stringliteral">&quot;] pools &quot;</span></div>
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno">  710</span>                  <span class="stringliteral">&quot;successfully.&quot;</span>);</div>
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno">  711</span>  }</div>
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno">  712</span> </div>
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno">  713</span>  m_async_cleanup_worker.schedule_from_now(CLEANUP_PERIOD, [<span class="keyword">this</span>](<span class="keyword">auto</span>&amp;&amp;) { cleanup(); });</div>
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno">  714</span>} <span class="comment">// Session_server::cleanup()</span></div>
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno">  715</span> </div>
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno">  716</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a522c28128981264487a7e35dd9ea3ef8">  717</a></span><span class="keywordtype">void</span> CLASS_JEM_SESSION_SRV::to_ostream(std::ostream* os)<span class="keyword"> const</span></div>
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno">  718</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno">  719</span>  Impl::to_ostream(os);</div>
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno">  720</span>}</div>
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno">  721</span> </div>
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno">  722</span><a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div>
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno"><a class="line" href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4556b229bf2bfc3c9eb51af13c47de3d">  723</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc.html#a5044ac385b12210816fc95ca1d5408b6">operator&lt;&lt;</a>(std::ostream&amp; os, <span class="keyword">const</span> <a class="code hl_define" href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#a8dae23ecd3142855a8275d6470410ea3">CLASS_JEM_SESSION_SRV</a>&amp; val)</div>
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno">  724</span>{</div>
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno">  725</span>  val.to_ostream(&amp;os);</div>
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno">  726</span>  <span class="keywordflow">return</span> os;</div>
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno">  727</span>}</div>
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno">  728</span> </div>
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno">  729</span>} <span class="comment">// namespace ipc::session::shm::arena_lend::jemalloc</span></div>
<div class="ttc" id="aclassipc_1_1session_1_1Server__session__dtl_html"><div class="ttname"><a href="classipc_1_1session_1_1Server__session__dtl.html">ipc::session::Server_session_dtl</a></div><div class="ttdoc">This is the data-less sub-class of Server_session or any more-advanced (e.g., SHM-capable) variant th...</div><div class="ttdef"><b>Definition:</b> <a href="server__session__dtl_8hpp_source.html#l00037">server_session_dtl.hpp:39</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1Session__mv_html_af10f452e602e4ea7389c6a77dd9a0f88"><div class="ttname"><a href="classipc_1_1session_1_1Session__mv.html#af10f452e602e4ea7389c6a77dd9a0f88">ipc::session::Session_mv&lt; Server_session_impl&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt; &gt;::Mdt_builder</a></div><div class="ttdeci">typename Impl::Mdt_builder Mdt_builder</div><div class="ttdoc">Implements Session API per contract.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__session_2src_2ipc_2session_2session_8hpp_source.html#l00534">session.hpp:534</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1Session__server__impl_html"><div class="ttname"><a href="classipc_1_1session_1_1Session__server__impl.html">ipc::session::Session_server_impl</a></div><div class="ttdoc">Internal class template comprising API/logic common to every Session_server variant,...</div><div class="ttdef"><b>Definition:</b> <a href="session__server__impl_8hpp_source.html#l00143">session_server_impl.hpp:146</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1Session__server__impl_html_a86de1d5b7cae35d89827c3235e2b8d89"><div class="ttname"><a href="classipc_1_1session_1_1Session__server__impl.html#a86de1d5b7cae35d89827c3235e2b8d89">ipc::session::Session_server_impl&lt; Session_server&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt;, Server_session&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt; &gt;::Mdt_reader_ptr</a></div><div class="ttdeci">typename Server_session_obj::Mdt_reader_ptr Mdt_reader_ptr</div><div class="ttdoc">Short-hand for Session_mv::Mdt_reader_ptr.</div><div class="ttdef"><b>Definition:</b> <a href="session__server__impl_8hpp_source.html#l00157">session_server_impl.hpp:157</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1Session__server__impl_html_a9ad5c6cbb1c9378d42ec5cd909389dc2"><div class="ttname"><a href="classipc_1_1session_1_1Session__server__impl.html#a9ad5c6cbb1c9378d42ec5cd909389dc2">ipc::session::Session_server_impl&lt; Session_server&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt;, Server_session&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt; &gt;::Channels</a></div><div class="ttdeci">typename Server_session_obj::Channels Channels</div><div class="ttdoc">Short-hand for Session_mv::Channels.</div><div class="ttdef"><b>Definition:</b> <a href="session__server__impl_8hpp_source.html#l00160">session_server_impl.hpp:160</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session_html"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Server__session.html">ipc::session::shm::arena_lend::jemalloc::Server_session</a></div><div class="ttdoc">Identical to session::Server_session in every way, except that it makes available two SHM arenas,...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2server__session_8hpp_source.html#l00226">server_session.hpp:229</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv_html_a50304d6dba4a332952aee67dc37598d0"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv.html#a50304d6dba4a332952aee67dc37598d0">ipc::session::shm::arena_lend::jemalloc::Session_mv&lt; session::Server_session_mv&lt; Server_session_impl&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt; &gt; &gt;::Structured_msg_reader_config</a></div><div class="ttdeci">typename Base::Base::Impl::Structured_msg_reader_config Structured_msg_reader_config</div><div class="ttdoc">Implements Session API per contract.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session_8hpp_source.html#l00159">session.hpp:159</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv_html_aaf1b1ad45b96d49c4c86e234a656f01b"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv.html#aaf1b1ad45b96d49c4c86e234a656f01b">ipc::session::shm::arena_lend::jemalloc::Session_mv&lt; session::Server_session_mv&lt; Server_session_impl&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt; &gt; &gt;::Structured_msg_builder_config</a></div><div class="ttdeci">typename Base::Base::Impl::Structured_msg_builder_config Structured_msg_builder_config</div><div class="ttdoc">Implements Session API per contract.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session_8hpp_source.html#l00153">session.hpp:153</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv_html_ae30ae4b65cd4178fa26eed660688829f"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__mv.html#ae30ae4b65cd4178fa26eed660688829f">ipc::session::shm::arena_lend::jemalloc::Session_mv&lt; session::Server_session_mv&lt; Server_session_impl&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt; &gt; &gt;::Arena</a></div><div class="ttdeci">typename Base::Base::Impl::Arena Arena</div><div class="ttdoc">The arena object on which one may call construct&lt;T&gt;(ctor_args...), where ctor_args are arguments to t...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session_8hpp_source.html#l00093">session.hpp:93</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html">ipc::session::shm::arena_lend::jemalloc::Session_server</a></div><div class="ttdoc">This is to vanilla Session_server what shm::arena_lend::jemalloc::Server_session is to vanilla Server...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00070">session_server.hpp:74</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a0b167219307d2016e46490b82138c553"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a0b167219307d2016e46490b82138c553">ipc::session::shm::arena_lend::jemalloc::Session_server::Structured_msg_reader_config</a></div><div class="ttdeci">typename Server_session_obj::Base::Structured_msg_reader_config Structured_msg_reader_config</div><div class="ttdoc">Short-hand for shm::arena_lend::jemalloc::Session_mv::Structured_msg_reader_config.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00106">session_server.hpp:106</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a1039d8bd2d4461085f3eeb5d24e40799"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a1039d8bd2d4461085f3eeb5d24e40799">ipc::session::shm::arena_lend::jemalloc::Session_server::app_shm_lender_session</a></div><div class="ttdeci">Structured_msg_builder_config::Builder::Session app_shm_lender_session(const Client_app &amp;app)</div><div class="ttdoc">In short, what app_shm_builder_config() is to shm::arena_lend::jemalloc::Session_mv::app_shm_builder_...</div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a1e47c282616158733240d3b7bd808036"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a1e47c282616158733240d3b7bd808036">ipc::session::shm::arena_lend::jemalloc::Session_server::Arena</a></div><div class="ttdeci">typename Server_session_obj::Base::Arena Arena</div><div class="ttdoc">Short-hand for shm::arena_lend::jemalloc::Session_mv::Arena. See app_shm() in particular.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00100">session_server.hpp:100</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a288737a9a8301c166aa83a5f05315c2a"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a288737a9a8301c166aa83a5f05315c2a">ipc::session::shm::arena_lend::jemalloc::Session_server::m_app_shm_by_name</a></div><div class="ttdeci">boost::unordered_map&lt; std::string, std::shared_ptr&lt; Arena &gt; &gt; m_app_shm_by_name</div><div class="ttdoc">The per-app-scope SHM arenas by App::m_name.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00354">session_server.hpp:354</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a37d900117341220d3f5b86b706dca47c"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a37d900117341220d3f5b86b706dca47c">ipc::session::shm::arena_lend::jemalloc::Session_server::m_async_cleanup_worker</a></div><div class="ttdeci">flow::async::Single_thread_task_loop m_async_cleanup_worker</div><div class="ttdoc">Thread used for low-priority periodic low-priority cleanup work. See cleanup().</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00357">session_server.hpp:357</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a39dc0e5a46a40b15c50d51b4929bac3c"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a39dc0e5a46a40b15c50d51b4929bac3c">ipc::session::shm::arena_lend::jemalloc::Session_server::m_srv_app_ref</a></div><div class="ttdeci">const Server_app &amp; m_srv_app_ref</div><div class="ttdoc">Identical to Session_server::m_srv_app_ref. Used in init_app_shm_as_needed() name calc.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00325">session_server.hpp:325</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a435bf78fa2f7ef5da954cb0cc0da69cb"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a435bf78fa2f7ef5da954cb0cc0da69cb">ipc::session::shm::arena_lend::jemalloc::Session_server::Lock_guard</a></div><div class="ttdeci">flow::util::Lock_guard&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for Mutex lock.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00306">session_server.hpp:306</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a4b451906ee2b46d230df5f252bbb64ed"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4b451906ee2b46d230df5f252bbb64ed">ipc::session::shm::arena_lend::jemalloc::Session_server::async_accept</a></div><div class="ttdeci">void async_accept(Server_session_obj *target_session, Task_err &amp;&amp;on_done_func)</div><div class="ttdoc">Contract identical to simpler session::Session_server::async_accept() overload; but internally ensure...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00532">session_server.hpp:532</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a4d22e6f00d6b8b92fe99198837bce3b9"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a4d22e6f00d6b8b92fe99198837bce3b9">ipc::session::shm::arena_lend::jemalloc::Session_server::Structured_msg_builder_config</a></div><div class="ttdeci">typename Server_session_obj::Base::Structured_msg_builder_config Structured_msg_builder_config</div><div class="ttdoc">Short-hand for shm::arena_lend::jemalloc::Session_mv::Structured_msg_builder_config.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00103">session_server.hpp:103</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a522c28128981264487a7e35dd9ea3ef8"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a522c28128981264487a7e35dd9ea3ef8">ipc::session::shm::arena_lend::jemalloc::Session_server::to_ostream</a></div><div class="ttdeci">void to_ostream(std::ostream *os) const</div><div class="ttdoc">Prints string representation to the given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00717">session_server.hpp:717</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a5cfd3651a06380b877738c6b5fc353a9"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a5cfd3651a06380b877738c6b5fc353a9">ipc::session::shm::arena_lend::jemalloc::Session_server::Session_server</a></div><div class="ttdeci">Session_server(flow::log::Logger *logger_ptr, const Server_app &amp;srv_app_ref, const Client_app::Master_set &amp;cli_app_master_set_ref, Error_code *err_code=0)</div><div class="ttdoc">Constructor: identical to session::Session_server ctor.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00372">session_server.hpp:372</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a6e1d79535dbedc076f11077735e866db"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a6e1d79535dbedc076f11077735e866db">ipc::session::shm::arena_lend::jemalloc::Session_server::Mutex</a></div><div class="ttdeci">flow::util::Mutex_non_recursive Mutex</div><div class="ttdoc">Short-hand for m_app_shm_mutex type.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00303">session_server.hpp:303</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a8d11292ef977d04acb9260036100c605"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a8d11292ef977d04acb9260036100c605">ipc::session::shm::arena_lend::jemalloc::Session_server::app_shm</a></div><div class="ttdeci">Arena * app_shm(const Client_app &amp;app)</div><div class="ttdoc">Returns pointer to the per-app SHM-arena, whose lifetime extends until *this is destroyed; or null if...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00488">session_server.hpp:488</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a95e9d47a5bd9c32b3d3970ed3af0db01"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a95e9d47a5bd9c32b3d3970ed3af0db01">ipc::session::shm::arena_lend::jemalloc::Session_server::Channels</a></div><div class="ttdeci">typename Impl::Channels Channels</div><div class="ttdoc">Short-hand for Session_mv::Channels.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00097">session_server.hpp:97</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_a96cce95ab7dccc577815b907c94b8f7e"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#a96cce95ab7dccc577815b907c94b8f7e">ipc::session::shm::arena_lend::jemalloc::Session_server::app_shm_reader_config</a></div><div class="ttdeci">Structured_msg_reader_config app_shm_reader_config(const Client_app &amp;app)</div><div class="ttdoc">Returns reader config counterpart to app_shm_builder_config() for a given Client_app app.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00522">session_server.hpp:522</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_aa548c3379d4b8a8f0b9d618b0c1da7ba"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa548c3379d4b8a8f0b9d618b0c1da7ba">ipc::session::shm::arena_lend::jemalloc::Session_server::app_shm_builder_config</a></div><div class="ttdeci">Structured_msg_builder_config app_shm_builder_config(const Client_app &amp;app)</div><div class="ttdoc">Returns builder config suitable for capnp-serializing out-messages in SHM arena app_shm() for the sam...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00512">session_server.hpp:512</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_aa56818050f1bd25b26fc51690a6afbf8"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa56818050f1bd25b26fc51690a6afbf8">ipc::session::shm::arena_lend::jemalloc::Session_server::app_shm_ptr</a></div><div class="ttdeci">std::shared_ptr&lt; Arena &gt; app_shm_ptr(const Client_app &amp;app)</div><div class="ttdoc">Identical to app_shm() but returns that via a shared_ptr-handle as required for work directly within ...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00494">session_server.hpp:494</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_aa846158c320f2870c77043b6270bb503"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aa846158c320f2870c77043b6270bb503">ipc::session::shm::arena_lend::jemalloc::Session_server::Mdt_reader_ptr</a></div><div class="ttdeci">typename Impl::Mdt_reader_ptr Mdt_reader_ptr</div><div class="ttdoc">Short-hand for Session_mv::Mdt_reader_ptr.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00091">session_server.hpp:91</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_aaeb9c251968732f0f44dcde64abdb8bb"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aaeb9c251968732f0f44dcde64abdb8bb">ipc::session::shm::arena_lend::jemalloc::Session_server::m_srv_namespace</a></div><div class="ttdeci">const Shared_name m_srv_namespace</div><div class="ttdoc">Identical Session_base::m_srv_namespace. Used in init_app_shm_as_needed() name calc.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00328">session_server.hpp:328</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_aafb28832358d6f75f363b932c291884f"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aafb28832358d6f75f363b932c291884f">ipc::session::shm::arena_lend::jemalloc::Session_server::cleanup</a></div><div class="ttdeci">void cleanup()</div><div class="ttdoc">Invoked on m_async_cleanup_worker, performs a round of the SHM-pool cleanup algorithm and schedules s...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00569">session_server.hpp:569</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_ac2c6ecf04a16b5aba00bdede17aa52e1"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ac2c6ecf04a16b5aba00bdede17aa52e1">ipc::session::shm::arena_lend::jemalloc::Session_server::shm_arena_pool_listener</a></div><div class="ttdeci">ipc::shm::arena_lend::Owner_shm_pool_listener_for_repository * shm_arena_pool_listener()</div><div class="ttdoc">Returns the arena-pool listener maintained throughout *this Session_server's life.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00563">session_server.hpp:563</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_acff88daea55dc583980576e06659324b"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#acff88daea55dc583980576e06659324b">ipc::session::shm::arena_lend::jemalloc::Session_server::m_app_shm_mutex</a></div><div class="ttdeci">Mutex m_app_shm_mutex</div><div class="ttdoc">Protects m_app_shm_by_name.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00331">session_server.hpp:331</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_ae0a96fec25d9deea4000ddf72046f379"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ae0a96fec25d9deea4000ddf72046f379">ipc::session::shm::arena_lend::jemalloc::Session_server::Mdt_builder</a></div><div class="ttdeci">typename Server_session_obj::Mdt_builder Mdt_builder</div><div class="ttdoc">Metadata builder type passed to mdt_load_func() in advanced async_accept() overload.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00094">session_server.hpp:94</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_ae5b53f9881efc8eccb5f93dc7d820c70"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#ae5b53f9881efc8eccb5f93dc7d820c70">ipc::session::shm::arena_lend::jemalloc::Session_server::init_app_shm_as_needed</a></div><div class="ttdeci">Error_code init_app_shm_as_needed(const Client_app &amp;app)</div><div class="ttdoc">Analogous to classic::Session_server::init_app_shm_as_needed().</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00405">session_server.hpp:405</a></div></div>
<div class="ttc" id="aclassipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server_html_aea3beac7c650fb100748a1f768e14d5e"><div class="ttname"><a href="classipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1Session__server.html#aea3beac7c650fb100748a1f768e14d5e">ipc::session::shm::arena_lend::jemalloc::Session_server::m_shm_arena_pool_listener</a></div><div class="ttdeci">ipc::shm::arena_lend::Owner_shm_pool_listener_for_repository m_shm_arena_pool_listener</div><div class="ttdoc">This guy needs to be around, with each arena (in our case, out of the box, session_shm()s and app_shm...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00348">session_server.hpp:348</a></div></div>
<div class="ttc" id="aclassipc_1_1shm_1_1classic_1_1Pool__arena_html"><div class="ttname"><a href="classipc_1_1shm_1_1classic_1_1Pool__arena.html">ipc::shm::classic::Pool_arena</a></div><div class="ttdoc">A SHM-classic interface around a single SHM pool with allocation-algorithm services by boost....</div><div class="ttdef"><b>Definition:</b> <a href="pool__arena_8hpp_source.html#l00150">pool_arena.hpp:153</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1sync__io_1_1Native__socket__stream_html"><div class="ttname"><a href="classipc_1_1transport_1_1sync__io_1_1Native__socket__stream.html">ipc::transport::sync_io::Native_socket_stream</a></div><div class="ttdoc">Implements both sync_io::Native_handle_sender and sync_io::Native_handle_receiver concepts by using a...</div><div class="ttdef"><b>Definition:</b> <a href="sync__io_2native__socket__stream_8hpp_source.html#l00150">native_socket_stream.hpp:151</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html">ipc::util::Shared_name</a></div><div class="ttdoc">String-wrapping abstraction representing a name uniquely distinguishing a kernel-persistent entity fr...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00241">shared_name.hpp:242</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_a48f20b7b54490aa10dc64081d34c55b2"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#a48f20b7b54490aa10dc64081d34c55b2">ipc::util::Shared_name::ct</a></div><div class="ttdeci">static Shared_name ct(const Source &amp;src)</div><div class="ttdoc">Copy-constructs from a char-sequence container (including string, util::String_view,...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00674">shared_name.hpp:674</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_a4c294e23753eb706b4c297d99d24cd48"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#a4c294e23753eb706b4c297d99d24cd48">ipc::util::Shared_name::S_RESOURCE_TYPE_ID_SHM</a></div><div class="ttdeci">static const Shared_name S_RESOURCE_TYPE_ID_SHM</div><div class="ttdoc">Relative-folder fragment (no separators) identifying the resource type for: SHM pools.</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00312">shared_name.hpp:312</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_a5c0910497c5ec484d3e42dfb0ccad48d"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#a5c0910497c5ec484d3e42dfb0ccad48d">ipc::util::Shared_name::S_SEPARATOR</a></div><div class="ttdeci">static const char S_SEPARATOR</div><div class="ttdoc">Character we use, by convention, to separate conceptual folders within str().</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00266">shared_name.hpp:266</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_ae89e1e061f87ffe0288514e254837595"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#ae89e1e061f87ffe0288514e254837595">ipc::util::Shared_name::str</a></div><div class="ttdeci">const std::string &amp; str() const</div><div class="ttdoc">Returns (sans copying) ref to immutable entire wrapped name string, suitable to pass into sys calls w...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8cpp_source.html#l00140">shared_name.cpp:140</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_af34db2934e116f8a4fdd403fd04695af"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#af34db2934e116f8a4fdd403fd04695af">ipc::util::Shared_name::size</a></div><div class="ttdeci">size_t size() const</div><div class="ttdoc">Returns str().size().</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8cpp_source.html#l00150">shared_name.cpp:150</a></div></div>
<div class="ttc" id="aipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2server__session_8hpp_html"><div class="ttname"><a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2server__session_8hpp.html">server_session.hpp</a></div></div>
<div class="ttc" id="aipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_html_a8dae23ecd3142855a8275d6470410ea3"><div class="ttname"><a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#a8dae23ecd3142855a8275d6470410ea3">CLASS_JEM_SESSION_SRV</a></div><div class="ttdeci">#define CLASS_JEM_SESSION_SRV</div><div class="ttdoc">Internally used macro; public API users should disregard (same deal as in struc/channel....</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00368">session_server.hpp:368</a></div></div>
<div class="ttc" id="aipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_html_aa00d15a5a3b543bd66c530e00d251933"><div class="ttname"><a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp.html#aa00d15a5a3b543bd66c530e00d251933">TEMPLATE_JEM_SESSION_SRV</a></div><div class="ttdeci">#define TEMPLATE_JEM_SESSION_SRV</div><div class="ttdoc">Internally used macro; public API users should disregard (same deal as in struc/channel....</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2shm_2arena__lend_2jemalloc_2session__server_8hpp_source.html#l00365">session_server.hpp:365</a></div></div>
<div class="ttc" id="anamespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1error_html_a9723fe7e789d5d2d670c42d32238f223a9fcf37ffabb8e0b552276e4bcbe5b0e0"><div class="ttname"><a href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_1_1error.html#a9723fe7e789d5d2d670c42d32238f223a9fcf37ffabb8e0b552276e4bcbe5b0e0">ipc::session::shm::arena_lend::jemalloc::error::Code::S_SHM_ARENA_CREATION_FAILED</a></div><div class="ttdeci">@ S_SHM_ARENA_CREATION_FAILED</div><div class="ttdoc">Session opening: While setting up the session's locally-managed SHM-arena(s) of an arena-lending SHM-...</div></div>
<div class="ttc" id="anamespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_html"><div class="ttname"><a href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc.html">ipc::session::shm::arena_lend::jemalloc</a></div><div class="ttdoc">Support for SHM-backed ipc::session sessions and session-servers with the SHM-jemalloc (ipc::shm::are...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2detail_2shm_2arena__lend_2jemalloc_2client__session__impl_8hpp_source.html#l00034">client_session_impl.hpp:35</a></div></div>
<div class="ttc" id="anamespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_html_a5044ac385b12210816fc95ca1d5408b6"><div class="ttname"><a href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc.html#a5044ac385b12210816fc95ca1d5408b6">ipc::session::shm::arena_lend::jemalloc::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Client_session_impl&lt; S_MQ_TYPE_OR_NONE, S_TRANSMIT_NATIVE_HANDLES, Mdt_payload &gt; &amp;val)</div><div class="ttdoc">Prints string representation of the given Client_session_impl to the given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2detail_2shm_2arena__lend_2jemalloc_2client__session__impl_8hpp_source.html#l00592">client_session_impl.hpp:592</a></div></div>
<div class="ttc" id="anamespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc_html_a8902859cb5006277933c12eeb9c6ef5d"><div class="ttname"><a href="namespaceipc_1_1session_1_1shm_1_1arena__lend_1_1jemalloc.html#a8902859cb5006277933c12eeb9c6ef5d">ipc::session::shm::arena_lend::jemalloc::SHM_SUBTYPE_PREFIX</a></div><div class="ttdeci">const Shared_name SHM_SUBTYPE_PREFIX</div><div class="ttdoc">Internally used in pool names generated in this namespace to differentiate from those of other SHM-su...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__shm__arena__lend_2src_2ipc_2session_2detail_2shm_2arena__lend_2jemalloc_2session__shared__name_8cpp_source.html#l00034">session_shared_name.cpp:34</a></div></div>
<div class="ttc" id="anamespaceipc_1_1session_html_a365d2d63f77b738e67e206af6b702634"><div class="ttname"><a href="namespaceipc_1_1session.html#a365d2d63f77b738e67e206af6b702634">ipc::session::build_conventional_shared_name</a></div><div class="ttdeci">Shared_name build_conventional_shared_name(const Shared_name &amp;resource_type, const Shared_name &amp;srv_app_name, const Shared_name &amp;srv_namespace, const Shared_name &amp;cli_app_name, const Shared_name &amp;cli_namespace_or_sentinel)</div><div class="ttdoc">Builds an absolute name according to the path convention explained in Shared_name class doc header; t...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__session_2src_2ipc_2session_2detail_2session__shared__name_8cpp_source.html#l00043">session_shared_name.cpp:44</a></div></div>
<div class="ttc" id="anamespaceipc_1_1session_html_ac970e7d7b97c1a9737bd836a6a7f77ec"><div class="ttname"><a href="namespaceipc_1_1session.html#ac970e7d7b97c1a9737bd836a6a7f77ec">ipc::session::decompose_conventional_shared_name</a></div><div class="ttdeci">bool decompose_conventional_shared_name(const Shared_name &amp;name, Shared_name *resource_type, Shared_name *srv_app_name, Shared_name *srv_namespace, Shared_name *cli_app_name, Shared_name *cli_namespace_or_sentinel, Shared_name *the_rest)</div><div class="ttdoc">Decomposes a Shared_name built as-if by build_conventional_shared_name() overload 1 (non-global-scope...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__session_2src_2ipc_2session_2detail_2session__shared__name_8cpp_source.html#l00114">session_shared_name.cpp:114</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a0c44028a45451ebf21f6af8e806b2682"><div class="ttname"><a href="namespaceipc_1_1util.html#a0c44028a45451ebf21f6af8e806b2682">ipc::util::process_id_t</a></div><div class="ttdeci">::pid_t process_id_t</div><div class="ttdoc">Syntactic-sugary type for POSIX process ID (integer).</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00143">util_fwd.hpp:143</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a924cd56daf7eeaa0b07edb352367f9ec"><div class="ttname"><a href="namespaceipc_1_1util.html#a924cd56daf7eeaa0b07edb352367f9ec">ipc::util::process_running</a></div><div class="ttdeci">bool process_running(process_id_t process_id)</div><div class="ttdoc">Returns true if and only if the given process (by PID) is reported as running by the OS.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2util_8cpp_source.html#l00134">util.cpp:134</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_abda2ce5bcdbc26ca63d667b87818439c"><div class="ttname"><a href="namespaceipc_1_1util.html#abda2ce5bcdbc26ca63d667b87818439c">ipc::util::shared_resource_permissions</a></div><div class="ttdeci">Permissions shared_resource_permissions(Permissions_level permissions_lvl)</div><div class="ttdoc">Maps general Permissions_level specifier to low-level Permissions value, when the underlying resource...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2util_8cpp_source.html#l00037">util.cpp:37</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ac66141280c3b7295a86b65209f31cc58"><div class="ttname"><a href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">ipc::util::Fine_duration</a></div><div class="ttdeci">flow::Fine_duration Fine_duration</div><div class="ttdoc">Short-hand for Flow's Fine_duration.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00117">util_fwd.hpp:117</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ae6ac47812a90d1287c61e0b7de7bc4f5"><div class="ttname"><a href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">ipc::util::String_view</a></div><div class="ttdeci">flow::util::String_view String_view</div><div class="ttdoc">Short-hand for Flow's String_view.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00115">util_fwd.hpp:115</a></div></div>
<div class="ttc" id="anamespaceipc_html_aa3192e586cc45d3e7c22463bf2760f89"><div class="ttname"><a href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">ipc::Error_code</a></div><div class="ttdeci">flow::Error_code Error_code</div><div class="ttdoc">Short-hand for flow::Error_code which is very common.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00298">common.hpp:298</a></div></div>
<div class="ttc" id="apool__arena_8hpp_html"><div class="ttname"><a href="pool__arena_8hpp.html">pool_arena.hpp</a></div></div>
<div class="ttc" id="asession_2shm_2arena__lend_2jemalloc_2jemalloc__fwd_8hpp_html"><div class="ttname"><a href="session_2shm_2arena__lend_2jemalloc_2jemalloc__fwd_8hpp.html">jemalloc_fwd.hpp</a></div></div>
<div class="ttc" id="asession__server__impl_8hpp_html"><div class="ttname"><a href="session__server__impl_8hpp.html">session_server_impl.hpp</a></div></div>
<div class="ttc" id="astructipc_1_1session_1_1App_html_a8e67b57829fe43a122a23c699b5de8fd"><div class="ttname"><a href="structipc_1_1session_1_1App.html#a8e67b57829fe43a122a23c699b5de8fd">ipc::session::App::m_name</a></div><div class="ttdeci">std::string m_name</div><div class="ttdoc">Brief application name, readable to humans and unique across all other applications' names; used both...</div><div class="ttdef"><b>Definition:</b> <a href="app_8hpp_source.html#l00144">app.hpp:144</a></div></div>
<div class="ttc" id="astructipc_1_1session_1_1Client__app_html"><div class="ttname"><a href="structipc_1_1session_1_1Client__app.html">ipc::session::Client_app</a></div><div class="ttdoc">An App that is used as a client in at least one client-server IPC split.</div><div class="ttdef"><b>Definition:</b> <a href="app_8hpp_source.html#l00184">app.hpp:185</a></div></div>
<div class="ttc" id="astructipc_1_1session_1_1Client__app_html_add718cbf6aa1d2abb26fbadcc974a7bd"><div class="ttname"><a href="structipc_1_1session_1_1Client__app.html#add718cbf6aa1d2abb26fbadcc974a7bd">ipc::session::Client_app::Master_set</a></div><div class="ttdeci">boost::unordered_map&lt; std::string, Client_app &gt; Master_set</div><div class="ttdoc">Suggested type for storing master repository or all Client_appss. See App doc header for discussion.</div><div class="ttdef"><b>Definition:</b> <a href="app_8hpp_source.html#l00192">app.hpp:192</a></div></div>
<div class="ttc" id="astructipc_1_1session_1_1Server__app_html"><div class="ttname"><a href="structipc_1_1session_1_1Server__app.html">ipc::session::Server_app</a></div><div class="ttdoc">An App that is used as a server in at least one client-server IPC split.</div><div class="ttdef"><b>Definition:</b> <a href="app_8hpp_source.html#l00205">app.hpp:206</a></div></div>
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